Analysis of Fault Characteristics of Distributed SG

Photovoltaic Array Over Current Relay, Counter Set reclosure over current relay, MPPT, PWM Generator, Inverter

Inverter-based distributed energy resources (DERs) are characterized with low fault current and negligible amount of negative and zero sequence currents. Understanding DER’s fault characteristics is critical for fault analysis and protective relay setting. Despite the abundant work on DER modelling, few research studies have been done to analyse DER’s fault behaviours during actual fault events